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N0. 632,8. Patented Sept. l2, I899.

F. A. ERRINGT ON.

STUD SETTING MACHINE.

(Application filed June 13. 1898.:

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UNITED STATES PATENT QEEicE.

FRANKLIN A. ERRINGTON, on NEW YORK, N. Y.

STUD-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 632,811, datedSeptember 12, 1899. Application filed une 13, 1898. Serial No. 683,372.(No model.)

To a whom it may concern:

Be it known that l, FRANKLIN ALFRED EE- RINGTON, a citizen of the UnitedStates, residing in New York, (St-apleton, Staten Island,) State of NewYork, have invented certain new and useful Improvements in Stud-SettingMachines, of which the following is a specification.

My invention relates to means for rotating a spindle in oppositedirections, to means for retaining said oppositely-rotative spindle inline with a driving part, to means for holding said spindle out ofengagement with said rotative means to facilitate the connection ordisconnection of a tool or holder with said spindle, to means forcentering and alining said tool orholder with said spindle, to means forconnecting and disconnecting a stud or similar piece to and from saidspindle, and to other details of improvement and combinations of partshereinafter described and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein- Figure 1 is a vertical cross-sectional view of amachine embodying my invention. Fig. 2 is a plan view of Fig. 1, showingthe intertop plate and shank being removed, and the case sectioned online 2 Fig. 3 is a plan view of the reversing-wheel and thrustring. Fig.at is a view of Fig. 3, showing method of withdrawing clutch-bar. Fig. 5is a plan view of friction mechanism, on about line 5 5 of Fig. 1, withthe adjusting-nut removed to show the slip-joint that connects thecheckwasher with the friction-driven disk. Fig. 0 is a horizontalcross-section of Fig. 1 on the line 6 6. Fig. 7 is a front elevation ofthe stud-holder. Fig. 8 is a horizontal crosssection on line 8 S of Fig.1, and Fig. 9 is a top view of Fig. 7.

A shank A is shown as a means of connecting my device to the rotativespindle B of a drill-press D or similar tool, the parts of which beingpreferably arranged so that the spindle B is movable longitudinally bymeans of a lever C. The shank A is provided with a spii'idle-bearing a,and the lower end of said shank is reduced in diameter and threaded tomesh with a threaded bore in a gearwheel 1, the lower end of saidthreaded bore being enlarged to form a clutch-chamber 1 in the innerface of gear-wheel 1. A case 2 is preferably shown integral with alateral opening 2 into its gear-chamber 2, through which the gear-wheel1 is passed and then connected with a shank A by screwing the latterinto the threaded bore in the outer face of said gear-wheel, the shank Apassing through an axial bore 2 in the top plate of case 2, the sides ofsaid shank forming a journal for said wheel 1 in said case. The wheel 1is provided with clutch-pins 1, extending into clutch-chamber l, and theperiphery of said wheel is provided with gearteeth. The base-plate ofcase 2 is bored and counterbored in line with bore 2 in the top plate. Anon-rotative spindle-bearing is provided in the counterbore in saidbase-plate,

preferably in the form of a bushing 3, which is suitably fastened tocase 2 to prevent rotation of said bushing with relation to said case.The side Walls of said bushing are pierced by opposing smooth bores 3 3,and said bushing beyond said case is preferably surrounded by astopcollar 4, preferably loosely fitted to the outside of said bushingto permit said collar to have independent lat eral movement. Said collaris shown provided with two projections 4 4 which are preferably shownscrew-threaded and located in opposed threaded bores. The ends of saidprojections or stop-screwed 4:" enter the transverse bores 3 3 Thegear-chamber 2 is preferably made eccentric to the periphery of case 2to provide a thick wall at one side of the case to receive a reverse-rod2 and reduce the wall at the other side to provide sufficient space toreceive a transmitting-pinion 5 and a reversingpinion 6, said pinionsbeing journaled on studs 5 6, each of said studs being supported in theopposed top and base plates of case 2 and meshing with each other, thedoubledepth transmitting-pinion 5 also meshing with wheell. (See Fig.2.) A reversing wheel 7 is shown provided with a hub that fits into thecounterbore in the base'plate of case 2, and said wheel is provided withan axial bore that registers with the non-rotative spindle-bearing inbushing-3 and with the 7 and clutch-pins 7 in a similar manner to thearrangement of the clutches, &c., of wheel 1. The periphery of wheel 7is also provided with gear-teeth that mesh with those of thereversing-pinion 6. By this method of gearing the wheel 7 is rotated inthe opposite direction to wheel 1 through the medium of pinions 5 6. Athrust-ring 8 is interposed between the inner faces of wheels 1 and 7,said ring having a bore 8, that registers with and is about the samesize as the clutch-chambers 1 7. One of the sides of ring 8 ispreferably split to form an aperture 8 and 0pposite said split I haveshown the side wall pierced 'by a bore 8 The side wall of case 2 is alsoprovided with a bore 2, that will register with bore 8. A spindle 9 ispassed up through the bushing 3, through the wheels 7 1, and journaledin bearing a in shank A. Said spindle is pierced by a transverse bore toreceive a clutch-bar 9. Ring 8 is preferably composed of an elasticmaterial that will enable the aperture 8 to be of less diameter normallythan the diameter of clutchbar 9, so that after said ring has beenexpanded sufficiently to allow the clutch-bar to be thrust through thetransverse bore in spindle 9 the aperture 8" will close to its normalsize. The clutch-bar 9 is of such size as to move freely in theclutch-chambers l 7 and the axial bore 8 of ring 8 and its ends willhold said ring concentric with spindle 9. The height of said clutch-baris such that it will project into said ring-bore when in full engagementwith the clutches of either wheel and will miss the clutches of bothwheels when midway between them. To remove clutch-bar 9, the ring 8 ataperture 3 is expanded and slipped overthe end of the clutchbar 9, (seeFig. 4,) whereupon any preferred form of driving-pin maybe insertedthrough the side of case 2 at hole 2 and through hole 8 and theclutch-bar 9 driven out of spindle 9, when all the above-mentioned partscan be removed from case 2, as it is seen that the clutch-bar must firstbe removed before any of the other parts can be withdrawn, and for thisreason the thrust-ring 8 must be provided with an aperture to permit thewithdrawal of clutch-bar 9 when the case 2 is integral, as shown. Thisthrust-ring is preferably made of fiber and retains the wheels 1 and 7intheir proper position, the construction shown being preferable to anypreviouslyknown case, as in the integral case thus made possible thebearings 2 and the non-rotative spindle-bearing in bushing 3 areperfectly rigid. The trappy and inaccurate alinement ofprevious methodsof construction have gone far to condemn attachable reverse mechanismsin the past, and the integral case will fully overcome this defect infunction, particularly when in combination with the arrangement ofgearing shown in the drawings. Before setting the stud the same machineis required to drill and then tap the hole, and the essential rigidityto perform this work is thus obtained. The lateral opening 2 is closedby a plate 2 which is held in place by screws, as shown in Fig. 2. It isessential to inclose gearing of this nature, as otherwise it is soondestroyed.

The outer end of spindle 9 is provided with a friction driving-disk 9and an axial bore 9*. Around the spindle 9, between the case 2 and thedisk 9 1 interpose a screw-threaded adjusting ring or nut 11, having anopening 11 and provided with means 11 for connection with a wrench. (SeeFig. 1.) Between ring 11 and disk 9 I interpose a check-nut or washer12, having a similar bore or opening 12 and provided with a lug 12 uponits periphery, that proje'ctsbeyond the periph: cry of adjusting-ring11. body 13 is located on the opposite side of disk 9 to that upon whichthe ring 11 is placed, and said body 13 is provided with a screwthreadedbore, the side wall 13 of which is shown internally threaded to meshwith the threads of ring 11 and provided with aslot 13 to receive lug 12and of sufficient length or depth to connect said friction-disks 12 13,together to rotate in unison by a slip-joint that permits of theirmoving independently to and from each other, and thereby prevents theslipping of disk 9 between disks 12 13 afiecting the tension of thefrictional contact of said disks 9 12 13. A friction-washer 14 ispreferably interposed between the disks 9 13, said washer 14 beingprovided with an axial bore that registers with and is preferably of thesame diameter as spindle-bore 9. This arrangement by which the twofrictiondriven disks 12 13 are connected to rotate together and to carrywith them the adjustingring 11 permits said adjusting-ring to cease torotate under excessive strain and thereby to enable the adjustment ofthe tension to be made without stopping the rotation of the spindle 9and its disk 9. provided with an axial bore or socket 13 in the innerportion of which is placed a relatively longitudinally movable centerpiece 15, which is shown extending up into the axial bore of spindle 9and actuated by a spring 16. Actuating the center piece l5 by a springis preferable to any unyielding adjustment, as it permits the tool orshank 19 to conform to any slight deviation that might occur in thealinement of the work and spindle 9. As tool-driving means the body 13is preferably provided with a transverse bore 13, in which is placed atransversely-movable socket-piece 17, provided with a socket 17, havingone of its sides preferably cut at an angle 17 to aline and its oppositeside wall provided with an adjustable clamp or screw 18 to grip a toolor tool-holder 19. (See Fig. 6.) I have preferably formed the bottomwall of the transverse bore 13 of body 13 by attaching a faceplate 13 byscrews 13. The axial bore 13 is continued through said face-plate 13 andis sufficiently enlarged to admit the largest tool intended to be drivenby said body 13.

A friction-driven The body 13 is The alining-socket 17 being preferablyof larger diameter than the diameter of the center piece 15, I providean abutment in the side wall of socket 133, preferably in the form of acenter washer 20, preferably placed in a recess cut in the side walls ofaxial bore 13 and the top wall of transverse bore 13, said washer 20being of greater diameter than the alining-socket l7 to prevent itsfalling therethrough and provided with an axial bore that registers withthe axial bore 13 and is of less diameter than the extreme diameter ofcenter piece 15. The center piece 15 is shown provided with aconvexcenter at one end 15 to pass a distance through the axial bore of washer20, limited by shoulder 15 to mesh with center hole 19 of a tool orholder 19, held in socket-piece 17. (See Fig. 1.) Should said tool orholder 19 have no center hole 19 or be pointed, the socket-piece 17 isslipped out of the transverse bore 13 the center washer 20 is removed,and the center piece 15 turned end for end to expose a concave center ortaper socket 15 provided in the other end of center piece 15. The washer20 is then replaced in its recess and the socket-piece 17 in thetransverse bore 13 to hold said washer in place, whereupon the end of atool or holder, as above described, can be centered in the axial bore ofwasher 20 if pointed or in the concave center 15 if small enough to passthrough the axial bore of washer 20.

A stud holder or setter is provided with a body 21 and a shank 19 toconnect said body with socket-piece 17 and through its connections withspindle 9, the stud-holder 21 being brought in axial alinement and heldeccentrically therewith by means of the center piece 15 engaging thecenter hole of shank 19, as above described. Said body 21 is providedwith an axial bore 21", opening into a transverse bore21 Thelowerportion of axial bore 21 is enlarged and provided with parallel walls ontwo sides to receive a stud-nut 22, pierced by a screw-threaded axialbore. To hold said stud-nut in the enlarged portion of bore 21*, Iinclose the body 21 in a cupshaped cover 23, having an axial boreregistering with bore 21 and transverse bores registering with bore 21".The bore 21 is preferably tapered throughout its length through cover 23and body 21, and to provide a suitable slip-surface above stud-nut 22 Idrive a tapered pin 24: into said tapered bore 21 and prevent saidtapered pin or wedge 24: from being driven out of bore 21 by atransverse pin 24. A stud 25 is screwed through studnut 22 and abutsagainst wedge 2t and is driven rigidly with body 21, the stud-nut 22being provided with parallel sides fitting closely between the parallelwalls of thelower portion of bore 21 to prevent stud-nut 22 roratingindependentlyof body .21 and the ends of stud-nut 22, being fittedbetween the walls of the cover 23, to register the screw-threaded boreof said stud-nut with the bore 21.

A hole being drilled and then tapped in work 26, the operation of theparts in setting the stud, &c., is as follows: The spindle B beingrotated to the right, the spindle 9 will be rotated to the left whenrunning idly, as the cross-bar 9 will be resting upon the face of theclutch-chamber 7*. (See Fig. 3.) Upon depressing my devicesay bymeans'of le ver Othe stud 25 will engage the work 26 and my device willcontinue to descend along the spindle 9 until the clutch-bar 9 engagesthe clutch-pins 1, whereupon the spindle 0 will be rotated to the rightor in the working direction. The tension of the friction-disks E) 12 13is adjusted (by turning the ring 11) sufficiently to screw the stud 25into the hole 26 until the end of said stud firmly engages the bottom ofsaid hole; but said adjustment is so regulated as to allow for the disk9 to slip between the'disks 12 13 before the strain is sufficient toendanger breaking the stud or any part of the device, and by myconstruction said adjustment can be made while the spindle 9 is running.Should said adjustment not be suffieiently tight to properly seat thestud 25 in hole 26, the disk 9 will slip and permit the adjustingmechanism to stand still, whereupon a wrench can be applied toadjusting-nut 11 and said nut turned sufficiently to start the body 13to rotating again. Thus in setting the first stud of a series the properadjustment can be secured forsetting the balance of the same-sizedstuds. The stud 25 being thus firmly seated, the lever 0 is thereuponraised sufficiently to withdraw the clutch-bar 9 from the clutch-pins 1,the slip pin or wedge 24 is struck on its end 24 to release the tensionof the meshing threads of nut 22 and stud 25, whereupon the lever C isfurther raised, the clutch-bar 9 brought into engagement with theclutchpins 7, and the nut 22 thereby unscrewed,

leaving the stud 25 fixed in Work 26.

In order to disengage the tool or holder 19 21 from the spindle 9, Istop the rotation of spindle 9 by bringing the clutch-bar 9 on thedead-center, (out of engagement with both the driving-clutches 1 and thereversing-clutches 7,) say, by slipping a piece of tin over the axialbore 21 (to prevent the stud rentering therein) and lowering the lever Cuntil the clutch-bar 9 is raised out of engagement with clutch-pins 7,whereupon I turn one of the stop-screws 4, and thereby cause both of thestop-screws l 4 to engage the spindle 9, as it will be seen that theindependent lateral movement of collar 4: permits the stop-screws l 1 topress with equal force against spindle 9, and thus avoid deflecting saidspindle from its normal position in its bearings and still holds saidspindle from longitudinal movement in the non'rotative spindle-bearingin bushing The spindle 9 being now out of rotary engagement with spindleB, I am enabled to slack the clampingscrew 18, which releases shank 19and separates the studholder from spindle 9. A drill, tap, or anydesired tool can now be placed in soeket17,

gripped by screw 18, and stop-screw 4L slacked back, whereupon theclutch-bar 9 will drop into the reversing position by gravity and thedevice will be ready to operate, as above described.

Having now described my invention, what I claim is 1. The combination ofa case, a drivingwheel and a reversing-wheel, the axes of said wheelsbeing in line, each of said wheels being provided with a clutch, athrust-ring interposed between the inner faces of said wheels, a spindlehaving a clutch rotatable independently of said thrust-ring and adaptedto engage either of said wheel-clutches, and gearing carried by saidcase and adapted to rotate one of said wheels in the opposite directionto the other thereof, substantially as described.

2. The combination with a case having integral top, base and side platesand provided with a lateral opening into its gear-chamber, of adriving-wheel adapted to pass said opening and suitably journaled in thetop plate of said case, a reversing-wheel journaled in line with saiddriving-wheel, each of said wheels being provided with a clutch, aspindle journaled axially of said wheels and having a transverse bore, aclutch-bar located in said spindle-bore and adapted to engage either ofsaid wheel-clutches, a thrust-ring interposed between the inner faces ofsaid wheels and provided with means to permit said clutchbar to beremoved from said spindlebore without disturbing the relative positionsof said driving and reversing wheels, and gearing carried by said caseand adapted to rotate one of said wheels in the opposite direction tothe other thereof, substantially as described.

3. The combination with a case having integral top, base and side platesand provided with an opening into its gear-chamber, of a driving-wheeladapted to pass said opening and suitably journaled in the top plate ofsaid case, a reversing-Wheel j ournaled in line with said driving-wheel,each of said wheels being provided with a clutch, aspindle journaledaxially of said wheels and provided with a clutch adapted to engageeither of said wheel-clutches, and gearing carried by said case andadapted to rotate one of said wheels in the opposite direction to theother thereof, substantially as described.

4. The combination with a case having integral top, base and side platesand provided with an opening into its gear-chamber, said gear-chamberbeing eccentric to the periphery of said case to provide at one sidethereof a thick wall to receive a reverserod, of a driving-wheel adaptedto pass said opening and suitably journaled in said top plate, areversing-wheel journaled in line with said drivingwheel, each of saidwheels being provided with a clutch, a spindle having a clutch orclutches adapted to engage either of said wheel-clutches, and gearingcarried by said case and adapted to rotate one of said wheels in theopposite direction to the other thereof, substantially as described.

5. The combination with a case having integral top, base and side platesand provided with an opening into its gear-chamber, said gear-chamberbeing eccentric to the periphery of said case to provide at one sidethereof a thick wall to receive a reverse-rod and at the other sidethereof a space to receive a transmitting-pinion and a reversing-pinionthat mesh with each other and are suitably journaled in said case, of adriving-wheel adapted to pass said opening and suitably journaled insaid top plate and meshing with said transmitting-pinion, areversing-wheel journaled in line with said driving-Wheel and meshingwith said reversing-pinion, each of said wheels being provided with aclutch, and a spindle having a clutch adapted to engage either of saidWheel-clutches, substantially as described.

6. The combination with a case having integral top, base and side platesand provided with an opening into its gear-chamber, of a driving-wheeladapted to pass said opening and suitably journaledin the top plate ofsaid case, a reversing-wheel journaled in line with said driving-Wheel,each of said wheels being provided with a clutch, a spindle having aclutch adapted to engage either of said wheelclutches,a reversing-pinionmeshing with said reversing-wheels, and a transmitting-pinion meshingwith said driving-wheel and with said reversing-pinion, each of theaxles of said pinions being supported in both the top and the baseplates of said case, substantially as de scribed.

7. The combination with a frame having a non-rotative spindle-bearingprovided with a transverse bore or bores opening thereinto, two wheels,each of said wheels being provided with a clutch, a spindle movablelongitudinally relative to said non-rotative spindle-bearing andprovided with a clutch or clutches adapted to engage either of saidwheel-clutches or to be out of engagement with both thereof, aprojection or projections that mesh with said transverse bore or boresof said non-rotative spindle-bearing, and means to actuate saidprojection or projections to hold said spindle clutch or clutches out ofengagement with said wheel-clutches, substantially as described.

8. The combination with a frame havinga,

non-rotative spindle-bearing provided with a transverse bore or boresopening thereinto, two wheels, each of said wheels being provided with aclutch, aspindle movable longitudinally relative to said non-rotativespindle-bearing and provided with a clutch or clutches adapted to engageeither of said wheel-clutches and to be out of engagement with boththereof, and an independentlymovable stop-collar carrying a projectionor projections that mesh with said transverse bore or bores of saidnon-rotative spindlebearing, and means to actuate said projection orprojections,substantially as described.

9. The combination of a body having a socket to receive a tool and beingprovided with means to connect said tool to rotate in unison with saidbody, of a relatively longitudinally movable reversible center piecehaving one of its ends provided with a convex center and the other endindented by a concave center, substantially as described.

10. The combination of a body having a socket to receive a tool andbeing provided with tool-driving means to connect said tool to rotate inunison with said body, of a center piece having a tapered center to meshwith said tool, a spring adapted to move said center piece outwardlyalong said socket, and means independent of said tool-driving means tolimit the outward longitudinal movement of said center piece,substantially as described.

11. The combination with a bod; having a socket adapted to receive atool, tool-driving means to connect said tool to rotate in unison withsaid body, of a center piece located in the inner portion of said socketand having a tapered center to mesh with said tool, a spring adapted tomove said center piece out wardly along said socket, and an abutmentprovided in the side wall of said socket independent of saidtool-driving means to limit the outward longitudinal movement of saidcenter piece, substantially as described.

12. The combination with a body having an axial bore to receive a tooland a transverse bore opening into said axial bore, of a relativelylongitudinally movable center piece sit uated in the inner portion ofsaid axial bore, a relatively transversely movable socket-piece having asocket and being located in said transverse bore, and a center washerlocated between the inner surface of said socketpiece and said body andprovided with a bore that registers with said axial bore and that is ofsmaller diameter than the extreme diameter of said center piece, thediameter of said washer being greater than the smallest diameter of saidsocket in said socket-piece, substantially as described.

13. The combination with a driving friction-disk, a friction-driven bodyhaving an axial bore adapted to receive a tool, tooldriving means toconnect said tool to said body to rotate in unison therewith, meansindependent of said tool-driving means to adjust the tension of thefrictional contact of said disk and body, and means to preserve saidtension at the degree adjusted, of a center piece longitudinally movableindependentlyof said tool-drivin g means and provided with a taperedcenter adapted to mesh with said tool, and means independent of theoutward tool-driving means to limit said longitudinal movement of saidcenterpiece, substantially as described.

lat. The combination with a driving friction disk, a screw-threaded adjusting-nut,a checkwasher interposed between said disk and nut, said nutand washer being each provided with an opening to admit means to connectsaid disk with a rotative driving part, a frictiondriven body having oneof its ends provided with a screw-threaded bore to mesh with said nut,said body and said check-washer being connected together to rotate inunison by a slip-joint that permits them to move independently towardand from said disk, said body being also provided with an axial bore toreceive a tool, tool-driving means to connect said tool to said body torotate in unison therewith, of a center piece longitudinally movableindependently of said tool-drivin g means and provided with a taperedcenter adapted to mesh with said tool, and means independent of saidtool-drivin g means tolimit the outward longitudinal movement of saidcenter piece, substantially as described.

15. The combination with a body having an axial bore provided with screw-threads to mesh with a stud and also having a transverse bore openinginto said axial bore, of awedge located in said transverse bore andhaving its surface exposed within said axial bore to en able said wedgeto directly engage said stud, substantially as described.

16. The combination with a body having an axial bore and a transversebore opening into said axial bore, and a nut suitably held fromindependent rotation within said axial bore and internallyscrew-threaded to mesh with a stud, of a wedge located in saidtransverse bore and having an exposed surface opposed to said nut toenable said wedge to directly engage said stud, substantially asdescribed.

17. The combination of a body having an axial bore and a transverse boreopening into said axial bore, a cover having an axial bore and atransverse bore that register respectively with the corresponding boresin said body, one of said parts having its axial bore provided withscrew-threads to mesh with a stud, and a wedge located in saidtransverse bores to connect said cover with said body, said wedge havingits surface exposed to enable said wedge to directly engage said stud,substantially as described.

18. The combination of a body having an axial recess, aninternallyscrew-threaded stud-nut located in said recess and connectedto rotate with said body, a cover having a here that opens into saidrecess and side walls that extend along said body, said body and coverhaving a transverse bore that extends through both and communicates withsaid axial recess of said body, and a wedge transversely movable in saidtransverse bore, substantially as described.

F. A. ERRINGTON. lVitnesses:

ERNEST H. HUTTON, D. J WILsON.

